Question

我正在做一个连接到Documentum数据存储的项目。我正在尝试使用以下函数更新分配给文件夹子文件夹的所有acl名称：

try {
        StringBuilder str = new StringBuilder();
        str.append(dirDestination);
        str.append("/");
        str.append(companyName);

        String query = "update dm_folder object set acl_name = '@acl_name' , set acl_domain ='@acl_domain' where folder ('@acl_dirPath',descend)";
        query = query.replace("@acl_name",newAclName);
        query = query.replace("@acl_domain",inheritedAclDomain );
        query = query.replace("@acl_dirPath",str.toString() );



        IDfQuery ACLQuery = new DfQuery();
        ACLQuery.setDQL(query);
        ACLQuery.execute(_session, IDfQuery.DF_EXEC_QUERY);
        log.info("All the sub folders have received the new ACL.");

}catch(Exception E){
    System.out.println(E.getLocalizedMessage());
}

该功能完美正常，但我想知道由于使用这些代码行而更新了多少个文件夹。一种方法是使用IDfCollections似乎不适用于这个DQL，因为我写了以下内容并且我一直得到1：

try{
    StringBuilder path = new StringBuilder();
    path.append(dirDestination);
    path.append("/" + companyName);
    String query = "update dm_folder object set acl_name = '@newAclName' , set acl_domain ='@newAclDomain' where folder ('@aclPath',descend)";
    query = query.replace("@newAclName" , newAclName );
    query = query.replace("@newAclDomain" , inheritedAclDomain );
    query = query.replace("@aclPath" , path );
    IDfQuery ACLQuery = new DfQuery();
    ACLQuery.setDQL(query);
    IDfCollection count = ACLQuery.execute(_session, IDfQuery.DF_EXEC_QUERY);
    int counter = 0 ;
    while (count.next()){
        counter++ ;

    }
    System.out.println("counter for sub folders ==> " + counter);
     log.info("The ACl name for all the sub folders are updated .");
}catch(Exception E ){
    System.out.println(E.getLocalizedMessage());
}

所以问题是我怎样才能知道有多少对象被更新的元数据？另一种方法是根据对象的修改日期进行检查。但还有其他更简单（更直接）的方式吗？

Answer 1

你只需要在while循环中获取objects_updated而不是increment变量：

IDfCollection count = ACLQuery.execute(_session, IDfQuery.DF_EXEC_QUERY);

int counter = 0 ;
if (count.next()) {
  counter   = count.getInt("objects_updated");
}

System.out.println("count of updated sub folders ==> " + counter   );

计算Documentum中已更新的对象数

1 个答案: